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Global 500

Mike Blake — Reuters





Tesoro is one of the largest independent petroleum refiners and marketers in the country, operating six refineries in California, Alaska, Washington, North Dakota, and Utah, with a combined refining capacity of 875,000 barrels a day. Its network of 2,300 retail stations includes those under the brands of Shell, Exxon, Mobil, USA Gasoline and ARCO, as well as its own brand. In January, it closed the acquisition of Great Northern Midstream, an operator of oil pipelines and storage in North Dakota. Under pressure from a squeeze in margins early in 2016, it has pushed back the completion of a $460 million program to integrate its two California refineries. That project also faces some stiff opposition from environmental campaigners and is still awaiting approval from state regulators, as of May 2016.


Gregory J. Goff




Petroleum Refining

HQ Location

San Antonio, TX



Years on Global 500 List


Excise taxes have been deducted.
Key Financials (last fiscal year)
($ Millions)% change
Revenues ($M)$28,150-29.7%
Profits ($M)$1,54082.7%
Assets ($M)$16,332
Total Stockholder Equity ($M)$5,213
Profit Ratios
Profit as % of Revenues5.5%
Profits as % of Assets9.4%
Profits as % of Stockholder Equity29.5%
()0.00 0.00 (0)
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News about Tesoro

Oil Refiner Tesoro Buys Western Refining for $4.1 Billion

The combined company will have over 3,000 branded retail stations.

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Dozens Arrested in Washington State Environmental Protest

Protestors and "kayaktivists" came by land and by sea, camping in tents and floating in canoes.

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The Environment? Cheap Oil Is Juicing U.S. Gas and SUV Sales

Valero Energy and Phillips 66 both say they are in 'max gasoline mode.'

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The Oil Export Ban's Death Won't Raise Gas Prices—For Now

But it will certainly make oil companies richer.

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Union says tentative deal reached to end U.S. refinery strike

Four-year deal includes modest pay raises but addresses union concerns over contracted labor and worker fatigue.

Read More →